I can't mention other company names, but I had someone out from another, higher-ranked company. I waited a week without hearing back from them with a quote. I called up the company asking for it, and they said someone would contact me. This never happened.
Another higher-ranked company did come out and estimated that the job of installing two radiators (where there used to be two- so it was merely attaching two radiators) and moving two radiator pipes that were where I had opened up the wall between the kitchen and living room would be up to $3200, with two men working two days. That seemed off by a day. Also, I would have had to wait a week. Since i had already wasted my time waiting for the first company, this wasn't what I was looking to hear.
I finally had Anta Plumbing out. I was unusually lucky in that they were able to come out and quote it later that day, a Thursday. It ended up that they were able to install it on Friday- the very next day. I know that this may not be experienced by everyone, but I was extremely thankful for the job that they did.
There were a couple of things that they did that went above and beyond what we had agreed to- and he didn't charge me any more. I wouldn't expect this, but I am grateful for the job that they did, the time frame in which they did it, and - from someone who reads reviews and takes seriously the recommendations that come from that- I would absolutely recommend Anta and will use them whenever I may need to.